Refrigerating apparatus assembly



mnmm APPARATUS 58m! March 1, 1932.

Filed Got. 1,, 1826 2 Sheets-Sheet 1 I, 1932. A, J. KUSEL 1,347,839

BEERIGBIEATIRG APPARAWS 4455mm Filed 001:. 1. 1926 2 meets-meet 2 Patented 1, 1932 UNITED STATES PATENT orrnca ABBAEAI J, RUSH, OI BBIDGEPOBT, CONNECTICUT, ASS IGNOR '10 KUIIA-IB OOBI PORA- .l'ION', OP BALTJIORIL'I ABYLAND, A. CORPORATION 01' nmwm I BEI'BIGEBATDTG APPARATUS LY Application fled October 1, 1986. Serial Io. 188,887.

This invention relates to certain im rovements in refrigerating apparatus, an particularly to that class known to the art as household refrigerating machines of the compressor, con enser, expander type, with speclal reference to the assembling and mounting of the various parts of the apparatus.

More specifically the novel feature of the present invention resides in a construction whereby the condenser forms a casing or enclosure for the compressor, this arrangement involving a particular form of air cooled condenser r se and means for mountin the same, as distinguished from the usual orm of coil condenser.

In the roductionof a successful household refrigerating plant it is necessary to have the apparatus as compact as possible, consistent wlth eflicient and economical operation and initial cost to the purchaser and it is the object of the instant invention to pro duce a machine of the type indicated, possessing all of-the desirable features as above enumerated. This is made possible by providing a hollow tubular shell condenser formed of two concentrically arranged tubular members, each preferably corrugated and connected together in such a manner as to leave a relatively narrow space or chamber between the two tubular members, for the circulating vapor or gas and at the same time making a strong, rigid and imperforate casing. The compressor is suitably mounted within this casing or condenser and the fly wheel on one end of the compressor shaft is provided with fan blades, the diameter of the fly wheel being slightly smaller than the inside diameter of the condenser or casing. This combined 'fly wheel and fan is positioned adjacent one open end of the condenser so that the draft of air created by the fan will cool the whole inner surface of the condenser and at the same time the condenser or casing will confine all of this air as it. passes therethrough, and direct the same with full force and efi'ect against the compressor.

This improved form of condenser notonly acts as a very deslrable means for enclosing the entire unit, but by reason of its construction can be quickly and easily mounted, chea without injury thereto and a separate l1 uid receiver is unnecessary. The corrugatlons give strength and stifl'nesstothe structure and also give a mixing effect to the entering va or or gas so as to prevent laning by pro ucing eddy currents and causing every particle of the refrigerant to strike the condenser shell and thus give up their heat more readily, the corrugations also increasing greatly the condenser surface; These corrugations likewise provide increased surface for contact with the cooling air, creating edd currents and'thus increasin the cooling e ect.

A further important eature of the invention resides in the method and means of detachably mountin the condenser on the supggrting frame or ase whereby the same can quickly and securely held thereon and at the same time allow for expansion and contraction of the condenser under working con-* ditions.

Briefly stated the novel unit or assembly comprises a supporting base or frame of substantially H shape upon which is detachably supported in horizontal position, transversely of the frame the condenser of tubular form. Mounted within the confines of this condenser element, on suitable brackets carried by the aforesaid base or frame, is the compressor, the fly wheel of said compressor being constructed with fan blades and of such size as to rotate with full effect, adjacent one end of the condenser shell. v The condenser is provided with the necessary inlet and outlet connections, for attachment by suitable piping, to the compressor and expansion or refrigerating coil respectively. Mounted on the same supporting base or frame, but to one side of the condenser, is the electric motor or the like for drivin the compressor, preferably by means of a elt, the periphery of the fly wheel of the compressor being provided with a groove to accommodate the belt running from the driving pulley of the motor. To make the unit more compact it is proposed when necessary, to provide a suitable grating 1y manufactured, readily shipp d .upon t e transverse rods or the motor carryin the driving belt, all of which will be note upon referenceto' the accompanying drawings and following specification.

In the accompanying drawings:

Figure 1 is an end view of the refrigerating apparatus showing the condenser 1n s1de elevation and the manner of supporting said condenser on the base.

Fig. 2 is a side view looking through the condenser and illustrating the position of the compressor and fan with respect thereto.

Fig. 3 is a top plan view part being broken away to more clearly illustrate the compressor and associated parts enclosed by the condenser.

Fig. 4 is a detailed view illustrating the preferred means of detachably clamping the condenser in position relative to the frame.

Fig. 5 is a view of the complete assembly illustrating the preferred means of more completel enclosing the working parts.

Re erring to the drawings in detail the improved refrigerating apparatus comprises a supporting base or frame'A consisting of side bars or the like 1 connected by transverse rods or bolts 2 making a rigid yet substantially light construction.

Sup rted betweenthe side bars 1 and bolts 2 is the improved type of condenser consisting of a shell or casing 3. This casing is constructed of two concentrically arranged connected cylinders 4 and 5 (see Fig. 4) and forming a hollow tubular shell, the two concentric cylinders being assembled in sucha manner as to leave a relatively narrow space'between the respective walls of said cylinders. These cylinders are preferably corrugated in order to make a light rigid construction and at the same time provide a maximum cooling and condensing surface therefor during the actual operation of the refrigerating apparatus. As hereinbefore stated this condenser or shell 3 is supported upon the cross rods 2 and in order to cushion the same and also provide for the expansion and contraction of the condenser under working conditions there is inte osed between the bars 2 and the outer wa l of the condenser, resilient means preferably in the form of rubber cylinders 6.

This resilient mounting will also relieve any of the strains or stresses due to vibration. The condenser 3 is maintained in proper relative position on'the supporting base by set screws or the like 7 the same being-threaded through the side bars 1, the lower ends of the bolts positioned to engage the inner edge or periphery of the shell orcasing comprising the condenser, more clearly illustrated in detail in Fig. 4. By merely unscrewing the screws 7 the condenser can be lifted out of the supporting base or frame. As previously stated this condenser "when mounted forms an enclosure or casing for the names tant that the size and type of compressor be suitable to the size of the condenser or casing so that said compressor will be enclosed by the condenser as shown.

It also obvious that the condenser will be provided with the necessity inlet for the vapor or gas coming from the compressor and an outlet for the condensed refrigerant running to the expansion or refrigerating coil (not shown) through an appropriate expansion valve, these connect1ons being represented by the numerals 11 and 12 respectively. The refrigerating a paratus as illustrated is of the air cooled con enser type and the means of cooling consists of a fan 13 formed in combination with the fly wheel 14 mounted on one end of the compressor shaft, the spokes of the fly wheel comprising the fan blades. This fly wheel also forms a means by which the compressor is driven and the periphery thereof is constructed with a groove to accommodate a driving belt 15 running to the driving pulley 16 of an electric motor or the like 17. This motor is also carried by the supporting frame or base A upon transversel arranged supporting bars 18 and 19 said bars being secured to the side bars of the frame A by bolts or other similar fastening means. The fan 13 is arranged adjacent one open end of the condenser or casin and is of slightly smaller diameter than t e inside diameter of said condenser in order to obtain the maximum circulation of air through the condenser and around the compressor.

To make a more attractive and complete assembly or unit the open ends of the condenser or casing may be provided with removable grating or the like 20 and 21.

It will be apparentthat owing to the novel construction of the condenser a rigid and com lete housin is provided for the essential wor 'ng parts 0 the refrigerating apparatus. At the same time this type of condenser comprises in its base a. liquid receiver, making it unnecessary tobuild a separate receptacle for this purpose as would be necessary where the absolutely necessary to the efllcient working I I of the apparatus, that the compressor be mounted wholly within the condenser as the same could be positioned at either end of the condenser, and substantially the same effects obtained.

What I claim is:

1. In a refrigerating apparatus, the combination with a compressor and driving mechanism therefor, of an imperforate air cooled condenser comprising a hollow cylindrical shell enclosing said compressor and a' fan for cooling the condenser and compressor.

2. In a refrigerating apparati; the combination with a compressor and di iving mechanism therefor, of an imperforate air cooled condenser comprising a hollow cylindrical shell enclosing said compressor and a fan .mounted on the. compressor shaft and positioned adjacent one end of the condenser shell for cooling the condenser and compressor.

3. In a refrigerating apparatus, the combination with a compressor and driving mechanism therefor, of an imperforate air cooled condenser comprising a hollow cylindrical shell enclosing said compressor and a combined fan and fly wheel mounted on the compressor shaft and positioned adjacent one end of the condenser shell for cooling the condenser and compressor.

4. In a refrigerating apparatus, the combination with a compressor and driving mechanism, of a support therefor, a condenser forming in its entirety an imperforate air cooled condenser forming an enclosure detachably mounted on said support and a compressor and fan positioned Within said condenser.

5. In a refrigerating apparatus, the combination with a compressor and driving mechanism, of a support therefor, an imperforate air cooled condenser comprising a hollow cylindrical shell forming an enclosure detachably mounted on said support, resilient means interposed between said condenser and support and a compressor and fan mountedwithin said condenser.

6. In a refrigerating apparatus, the combination with a supporting base, of a substantially rigid, imperforate air cooled cylindrical condenser detachably mounted on said base, a compressor positioned within said I rigid housing therefor.

side members and s aced transverse members, of a substantia 1y rigid, imperforate air cooled cylindrical con enser supported on said transverse members and detachably upon the base and positioned within said condenser, a combined fly wheel and fan mounted on the compressor shaft adjacent 7 one end of the condenser and a motor carried by the base for driving said compressor.

9. In a refrigerating apparatus, the combination with a compressor and driving mechanism therefor, of a horizontally arranged, imperforate air cooled condenser comprising a hollow cylindrical shell, and means for mounting said compressor wholly within the condenser.

10. In a refrigerating apparatus, the combination with a com ressor and a cooling fan therefor, of a closed wall condenser encl0sing said compressor and fan, whereby the air from the fan will be directed to and confined about said com ressor.

11. In a refrigerating apparatus, the combination with a compressor and a cooling fan therefor, of a closed wall condenser comprising a hollow cylindrical shell concentrically mounted with respect to said fan and compressor, whereb the air from the fan will be confined within the circumference of the condenser and directed to and around said compressor.

12. In a refrigerating apparatus, the com- 1 bination with a compressor and driving mechanism therefor, of a closed wall condenser comprising a'hollow cylindrical shell enclosing said compressor and providing a 13 In a refrigerating apparatus, the com bination with a compressor, of a fan for cooling saidcompressor, a hollow shell condenser mounted axially of said fan and compressor and forming a means for directing and confining the air to and around said compressor.

condenser, a fan'mounted on the compressor shaft adjacent one end of the condenser and means for driving said compressor.

7. In a refrigerating apparatus, the com- 65 bination with a supporting base, of a substantially rigid, imperforate air cooled cylindrical condenser detachably mounted on said base, resilient means interposed between said base and'condenser, a com ressor posi- 60 tioned within, said condenser, a an mounted on the compressor shaft adjacent one end of the condenser and means for driving said compressor.

8. In a refrigerating apparatus, the com- 65 bination with a supporting base comprising In testimony whereof I aflix my si ature.

ABRAHAM J. SEL. 

